(pt.ps) run
/unifont/ProcSet findresource { def } forall

(in-range):     16#0431 { 16#0400 16#0480 5 ushow.rangew pop 9 exit } loop :: 5 TEST
(not-in-range): 16#0431 { 16#0000 16#0280 7 ushow.rangew pop 9 exit } loop :: 9 TEST
